US4084419A - Method for manufacturing annular metal workpieces - Google Patents

Method for manufacturing annular metal workpieces Download PDF

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Publication number
US4084419A
US4084419A US05/775,199 US77519977A US4084419A US 4084419 A US4084419 A US 4084419A US 77519977 A US77519977 A US 77519977A US 4084419 A US4084419 A US 4084419A
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US
United States
Prior art keywords
blank
ring
workpiece
section
rolling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/775,199
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English (en)
Inventor
Erich Dittrich
Siegfried Grone
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ThyssenKrupp Technologies AG
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Thyssen Industrie AG
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Filing date
Publication date
Application filed by Thyssen Industrie AG filed Critical Thyssen Industrie AG
Application granted granted Critical
Publication of US4084419A publication Critical patent/US4084419A/en
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
    • B21K1/761—Making machine elements elements not mentioned in one of the preceding groups rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/027—Trimming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/025—Special design or construction with rolling or wobbling dies

Definitions

  • This invention relates in general to metal working and, in particular, to a new and useful method of manufacturing annular workpieces having a deeply profiled cross-section, such as blank flanges or the like, and to a rolling mill construction for forming annular workpieces.
  • Annular workpieces having a deeply profiled cross-section such as blank flanges or the like, may be manufactured so that pieces cut from a bloom or bar which have been heated to forging temperature are formed on drop forging presses or hammers and, thereupon, pierced and deburred and, if necessary, calibrated.
  • This manufacturing process requires considerable forming forces and involves the production of correspondingly expensive machines which are required. Further disadvantages are the high costs of tools and the great amount of waste material from piercing and deburring.
  • the inventive method makes it possible to manufacture blank flanges or similar workpieces with low machine and tool expenses, negligible material losses and small drive power, and it ensures a very good accuracy in in shape and size, as well as surface quality of the workpieces.
  • the invention is based on the finding that the objective can be achieved by using planar upsetting faces for preparing the blank, smooth rolling tools for the roughing, and by a finish-rolling with almost no slip and wear, in spite of the profiled tools.
  • a method which comprises the operational steps of upsetting and piercing a piece cut from a bloom or bar and heated up to a forging temperature, then roughing the piece by a force acting at least on the outside and inside circumferences of the rotating blank to a ring having a substantially rectangular cross-section and an outside diameter which is equal to or slightly larger than the inside diameter of the finished workpiece and, finally, finish-rolling it to profile and to the final diameters by a force acting on the front faces of the rotating ring.
  • the invention further provides that during the roughing operation, forces are exerted simultaneously on the peripheral surfaces and the front surfaces of the rotating blank.
  • the material flow of the rotating ring is limited in the radial direction during the finish-rolling operation.
  • the finish-rolling is done by means of a rolling mill having two rolls which can be moved axially toward each other and of which at least one is driven and one has its front surface shaped as a negative of one portion of the profile to be rolled while the other roll, the axis of which is inclined relative to the axis of the first roll by a small angle, has the shape of a negative of the other portion of the profile to be rolled which negative is provided on the superficies of an obtuse-angled cone.
  • Such rolling mills which are employed for rolling disc-shaped workpieces, for example, solid railroad wheels or the like, out of preshaped blanks, are known per se (for example, from U.S. Pat. No. 965,039) but have not been used as yet for folling annular workpieces having a deeply profiled cross-section, in accordance with the inventive method.
  • an object of the invention to provide a method of manufacturing an annular metal part which has a deeply profiled cross-section which comprises heating the workpiece bloom to a forging temperature and upsetting and piercing the workpiece to form a pierced blank, roughing and pierced blank by applying a force acting at least on the outside and the inside periphery while the blank is rotated in order to form the blank into a ring which has a substantially rectangular cross-section and an inside diameter which is equal to or slightly larger than the inside diameter of the finished part to be formed and, thereupon, rotating the ring and shaping it to the desired profile by directing a force on the front face of the rotating ring and finish-rolling the ring to the final internal and external diameters.
  • a further object of the invention is to provide a rolling mill for rolling respective opposite face portions of a pierced workpiece, which comprises first and second mill rolls which are mounted for rotation about separate first and second respective axes and which are also movable toward and away from each other in respective axial directions and, wherein, at least one of the rolls is driven and the first roll has a front surface shaped as a negative of one face portion of the profile to be rolled and the second roll is shaped with the negative of the profile of the other surface to be rolled and wherein the rolls are arranged so that their axes are inclined relatively by a small angle.
  • a further object of the invention is to provide an apparatus for manufacturing annular metal workpieces which is simple in design, rugged in construction and economical to manufacture.
  • FIG. 1 is a side elevational view of a bloom or bar workpiece
  • FIG. 2 is a side elevational view indicating the workpiece being upset
  • FIG. 3 is a view similar to FIG. 2 indicating the workpiece being pierced
  • FIG. 4 is a view similar to FIG. 3 showing the final piercing of the workpiece
  • FIG. 5 is a view showing the roughing of the ring which is formed from the pierced workpiece.
  • FIG. 6 is a sectional view showing the apparatus for the finish-rolling of the workpiece ring.
  • the upset workpiece 3a is then prepierced with prepiercing tools 4 and 5 (FIG. 3) and pierced through with finish-piercing tools 6 and 7 (FIG. 4).
  • the hole of the pierced blank 8 has a slightly larger diameter than the mandrel roll 9 of the roughing mill for annular shapes (FIG. 5).
  • the roughing mill for annular shapes comprises a driven disc roll 10 acting on the outer periphery of the blank, a mandrel roll 9 acting on the inside diameter of the blank, and two frustoconical axial rolls 11 and 12 acting on the front sides of the blank. At least one of the axial rolls 11 and 12 is driven and they are movable relatively toward and away from each other.
  • the roughed ring 13 takes a rectangular cross-sectional shape and has a slightly smaller height relative to the pierced blank 8 and has an inside diameter which is slightly larger than the inside diameter 14 of the finished flange 15, shown in FIG. 6.
  • the finishing mill comprises a driven lower roll 16 having the shape of a negative of the lower front face 17, the inside diameter 14, and the outside diameter 18 of the flange.
  • the upper roll 19 is also driven and movable toward lower roll 16 in the direction of the axis of rotation 20 of the lower roll.
  • the axis of rotation 21 of upper roll 19 is slightly inclined relative to axis of rotation 20, by an angle 22 of, ordinarily, about from 2° to 20°, depending on the diameter of the flange.
  • the underside and inside surfaces 23 of upper roll 19 form a truncated cone on which a negative of the remaining surfaces 24 and 25 of the flange to be rolled is provided in a manner such that the narrowest roll gap between lower roll 16 and upper roll 19 corresponds to the cross-section of the finished flange 15.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Metal Rolling (AREA)
US05/775,199 1976-03-19 1977-03-07 Method for manufacturing annular metal workpieces Expired - Lifetime US4084419A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DT2611568 1976-03-19
DE19762611568 DE2611568A1 (de) 1976-03-19 1976-03-19 Verfahren zum herstellen von ringfoermigen werkstuecken mit stark profiliertem querschnitt, wie vorschweissflansche o.dgl., und walzwerk zu dessen durchfuehrung

Publications (1)

Publication Number Publication Date
US4084419A true US4084419A (en) 1978-04-18

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US05/775,199 Expired - Lifetime US4084419A (en) 1976-03-19 1977-03-07 Method for manufacturing annular metal workpieces

Country Status (6)

Country Link
US (1) US4084419A (Direct)
JP (1) JPS52131967A (Direct)
DE (1) DE2611568A1 (Direct)
FR (1) FR2344353A1 (Direct)
GB (1) GB1572645A (Direct)
IT (1) IT1083863B (Direct)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445353A (en) * 1981-09-17 1984-05-01 Westinghouse Electric Corp. Apparatus for manufacturing helical cores
EP0278298A3 (en) * 1987-02-12 1988-12-21 Eaton Corporation Method for producing near net ring gear forgings
US4798077A (en) * 1987-02-12 1989-01-17 Eaton Corporation Method for producing a family of forged ring rolling preforms and forging die therefor
EP1068912A3 (en) * 1999-07-13 2002-01-09 Kabushiki-Kaisha Kotani Hypoid ring gear for differentials and method of producing the same
US6640438B2 (en) * 1998-06-22 2003-11-04 The Timken Company Process and machine for uniting rotatable machine components
CN102829891A (zh) * 2012-09-03 2012-12-19 昆山市工业技术研究院有限责任公司 用于物料温度及姿态判断的视觉检测系统及检测方法
EP2594348A1 (en) * 2011-11-21 2013-05-22 PSM, Inc. Method of manufacturing door frame for wind tower
CN104959497A (zh) * 2015-06-24 2015-10-07 陈文建 一种不锈钢锻造工艺
CN105050749A (zh) * 2013-03-21 2015-11-11 日立金属株式会社 环轧用材料的制造方法
CN104959501B (zh) * 2015-07-30 2016-08-24 西北有色金属研究院 一种tc4钛合金薄壁环件的加工方法
CN106583611A (zh) * 2016-12-01 2017-04-26 贵州安大航空锻造有限责任公司 低应力tc4钛合金环件制造方法
CN107206469A (zh) * 2014-09-01 2017-09-26 日立金属摩材超级合金株式会社 环状成型体的制造方法
WO2017163189A1 (en) * 2016-03-22 2017-09-28 Bharat Forge Limited A method of manufacturing a crown wheel, and a crown wheel
CN109482791A (zh) * 2018-11-16 2019-03-19 贵州航天新力铸锻有限责任公司 一种c型截面环件中间胚料制备工艺
US10427211B2 (en) * 2015-12-18 2019-10-01 Guizhou Aviation Technical Development Co. Ltd Forming method of forging of 718 Plus alloy
US10519795B2 (en) 2014-09-01 2019-12-31 Hitachi Metals, Ltd. Ring molded article manufacturing method and ring material
CN112170749A (zh) * 2020-09-30 2021-01-05 贵州安大航空锻造有限责任公司 Ti2AlNb基合金异形环件反向轧制成形方法
CN112719171A (zh) * 2020-12-04 2021-04-30 无锡派克新材料科技股份有限公司 一种τ字形锻件的近净成形工艺
US11365099B2 (en) * 2017-11-28 2022-06-21 Liebherr-Components Biberach Gmbh Rope drum and method for the production thereof
CN116274775A (zh) * 2023-05-16 2023-06-23 山西奔马铸锻有限公司 一种法兰对称式锻造加工用碾环机

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0788585A (ja) * 1993-06-29 1995-04-04 Asahi Tec Corp ホイ−ル用リムの製造法
DE19525868A1 (de) * 1995-05-30 1996-12-05 Thyssen Industrie Verfahren zum Herstellen von ringförmigen Werkstücken aus Metall mit profiliertem Querschnitt und Walzwerk zu dessen Durchführung
WO1997041982A1 (de) * 1996-05-02 1997-11-13 Wdb Ringwalztechnik Gmbh Verfahren zum walzen von kegelrädern auf einer axial-gesenkwalzmaschine und werkzeuganordnung zu dessen durchführung
DE102010023039A1 (de) 2010-06-08 2011-12-08 Volkswagen Ag Verfahren zur Herstellung von ringförmigen Verzahnungsbauteilen und Vorrichtung zur Durchführung des Verfahrens
CN102430897A (zh) * 2011-10-28 2012-05-02 江阴市恒润环锻有限公司 一种异形截面法兰的热变形工艺
CN106363115A (zh) * 2016-08-31 2017-02-01 无锡派克新材料科技股份有限公司 一种新型超高锥形环件轧环方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US965036A (en) * 1909-02-17 1910-07-19 Edwin E Slick Method of and apparatus for forging metal.
US1745514A (en) * 1924-08-26 1930-02-04 Taylor James Hall Ring-rolling machine
US1965446A (en) * 1932-09-23 1934-07-03 Edgewater Steel Manufacture of annular objects
US2058007A (en) * 1932-12-09 1936-10-20 Firm Ringfeder Gmbh Production of preliminarily shaped annular blanks
US3611771A (en) * 1967-07-01 1971-10-12 Rheinstahl Wagner Werkzeugmasc Method for rolling disks and a disk rolling mill for the practice of the method
US3738139A (en) * 1970-08-04 1973-06-12 Secr Defence Metal working

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US965036A (en) * 1909-02-17 1910-07-19 Edwin E Slick Method of and apparatus for forging metal.
US1745514A (en) * 1924-08-26 1930-02-04 Taylor James Hall Ring-rolling machine
US1965446A (en) * 1932-09-23 1934-07-03 Edgewater Steel Manufacture of annular objects
US2058007A (en) * 1932-12-09 1936-10-20 Firm Ringfeder Gmbh Production of preliminarily shaped annular blanks
US3611771A (en) * 1967-07-01 1971-10-12 Rheinstahl Wagner Werkzeugmasc Method for rolling disks and a disk rolling mill for the practice of the method
US3738139A (en) * 1970-08-04 1973-06-12 Secr Defence Metal working

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Metals Handbook, 8th Ed., vol. 5, American Society for Metals, pp. 106 & 107, "Ring Rolling." *

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445353A (en) * 1981-09-17 1984-05-01 Westinghouse Electric Corp. Apparatus for manufacturing helical cores
EP0278298A3 (en) * 1987-02-12 1988-12-21 Eaton Corporation Method for producing near net ring gear forgings
US4798077A (en) * 1987-02-12 1989-01-17 Eaton Corporation Method for producing a family of forged ring rolling preforms and forging die therefor
EP0278306A3 (en) * 1987-02-12 1990-06-20 Eaton Corporation Method for producing a family of forged ring rolling preforms and forging die therefor
US6640438B2 (en) * 1998-06-22 2003-11-04 The Timken Company Process and machine for uniting rotatable machine components
EP1068912A3 (en) * 1999-07-13 2002-01-09 Kabushiki-Kaisha Kotani Hypoid ring gear for differentials and method of producing the same
EP2594348A1 (en) * 2011-11-21 2013-05-22 PSM, Inc. Method of manufacturing door frame for wind tower
CN102829891A (zh) * 2012-09-03 2012-12-19 昆山市工业技术研究院有限责任公司 用于物料温度及姿态判断的视觉检测系统及检测方法
US9719369B2 (en) 2013-03-21 2017-08-01 Hitachi Metals, Ltd. Manufacturing method for material for ring rolling
US10094238B2 (en) 2013-03-21 2018-10-09 Hitachi Metals, Ltd. Material for ring rolling
CN105050749A (zh) * 2013-03-21 2015-11-11 日立金属株式会社 环轧用材料的制造方法
CN105073295A (zh) * 2013-03-21 2015-11-18 日立金属株式会社 环轧用材料
CN107206469A (zh) * 2014-09-01 2017-09-26 日立金属摩材超级合金株式会社 环状成型体的制造方法
CN107206469B (zh) * 2014-09-01 2019-04-02 日立金属株式会社 环状成型体的制造方法
US11208910B2 (en) 2014-09-01 2021-12-28 Hitachi Metals, Ltd. Ring molded article manufacturing method and ring material
US10519795B2 (en) 2014-09-01 2019-12-31 Hitachi Metals, Ltd. Ring molded article manufacturing method and ring material
EP3189910A4 (en) * 2014-09-01 2018-04-25 Hitachi Metals Mmc Superalloy, Ltd. Manufacturing method for ring formed body
CN104959497A (zh) * 2015-06-24 2015-10-07 陈文建 一种不锈钢锻造工艺
CN104959501B (zh) * 2015-07-30 2016-08-24 西北有色金属研究院 一种tc4钛合金薄壁环件的加工方法
US10427211B2 (en) * 2015-12-18 2019-10-01 Guizhou Aviation Technical Development Co. Ltd Forming method of forging of 718 Plus alloy
WO2017163189A1 (en) * 2016-03-22 2017-09-28 Bharat Forge Limited A method of manufacturing a crown wheel, and a crown wheel
CN106583611A (zh) * 2016-12-01 2017-04-26 贵州安大航空锻造有限责任公司 低应力tc4钛合金环件制造方法
US11365099B2 (en) * 2017-11-28 2022-06-21 Liebherr-Components Biberach Gmbh Rope drum and method for the production thereof
CN109482791A (zh) * 2018-11-16 2019-03-19 贵州航天新力铸锻有限责任公司 一种c型截面环件中间胚料制备工艺
CN112170749A (zh) * 2020-09-30 2021-01-05 贵州安大航空锻造有限责任公司 Ti2AlNb基合金异形环件反向轧制成形方法
CN112719171A (zh) * 2020-12-04 2021-04-30 无锡派克新材料科技股份有限公司 一种τ字形锻件的近净成形工艺
CN116274775A (zh) * 2023-05-16 2023-06-23 山西奔马铸锻有限公司 一种法兰对称式锻造加工用碾环机
CN116274775B (zh) * 2023-05-16 2023-07-25 山西奔马铸锻有限公司 一种法兰对称式锻造加工用碾环机

Also Published As

Publication number Publication date
JPS52131967A (en) 1977-11-05
DE2611568A1 (de) 1977-09-29
FR2344353B1 (Direct) 1980-03-21
FR2344353A1 (fr) 1977-10-14
GB1572645A (en) 1980-07-30
IT1083863B (it) 1985-05-25

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